Hello, in /git/git I have v2.18.0 and in ~/.bashrc : export PS1='${debian_chroot:+($debian_chroot)}\[\e[01;32m\]\u@\h\[\e[00m\]:\[\ e[ 01;34m\]\w\[\e[36m\]$(__git_ps1 " %s")\$ \[\e[0m\]' source /git/git/contrib/completion/git-completion.bash source /git/git/contrib/completion/git-prompt.sh After upgrading to 2.18 the completion does not work: typing "git de<TAB>" prints my@host:~$ git deUnknown option: --list-cmds=list- mainporcelain,others,nohelpers,alias,list-complete,config usage: git [--version] [--help] [-C <path>] [-c name=value] [--exec-path[=<path>]] [--html-path] [--man-path] [--info- path] [-p | --paginate | --no-pager] [--no-replace-objects] [ --bare] [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>] <command> [<args>] l.txt with l.txt being part of a file called "del.txt" or typing "git reb<TAB>" I expect to have rebase, but I see my@myhost:~$ git rebUnknown option: --list-cmds=list- mainporcelain,others,nohelpers,alias,list-complete,config usage: git [--version] [--help] [-C <path>] [-c name=value] [--exec-path[=<path>]] [--html-path] [--man-path] [--info- path] [-p | --paginate | --no-pager] [--no-replace-objects] [ --bare] [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>] <command> [<args>] Ideas? Doing in git/git/ "git checkout v2.17." followed by 'source /git/git/contrib/completion/git-comletion.bash" does help (makes the completion functioning). In the likely case this is fixed by now on master, please backport the fix soon to the maint branch. Greetings Дилят